查询占用cpu最高的20条sql语句,sql2008

 

SELECT TOP 10 a.creation_time,
total_worker_time/execution_count AS avg_cpu_cost, plan_handle,
execution_count,
(SELECT SUBSTRING(text, statement_start_offset/2 + 1,
(CASE WHEN statement_end_offset = -1
THEN LEN(CONVERT(nvarchar(max), text)) * 2
ELSE statement_end_offset
END - statement_start_offset)/2)
FROM sys.dm_exec_sql_text(sql_handle) b) AS query_text
FROM sys.dm_exec_query_stats a
ORDER BY [avg_cpu_cost] DESC